《建模练习轴承座》PPT课件

Training Manual实体建模: 自上而下 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual说明建立轴承座的1/2对称实体模型。以p-block.db 文件名保存数据库文件Counterbore1.0R, 0.1875 deep Base6 x 3 x 1Web, 0.15 thick All dimensions in inches 1.75Four 0.75D holes,0.75 offsetfrom corner Bushing, 0.85R Bracket1.5R, 0.75 thick INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual1.按教师指定的工作目录，用“p-block”作为作业名， 进入 ANSYS2.打开等轴视图方位:按ISO或用命令:/VIEW,1,1,1,13.创建轴承座的基础 : Main Menu Preprocessor Modeling Create Volumes Block By Dimensions输入 X1 = 0, X2 = 3, Y1 = 0, Y2 = 1, Z1 = 0, Z2 = 3,然后按OK或用命令:/PREP7 BLOCK,0,3,0,1,0,3 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual4.将工作平面移到 X=2.25, Y=1.25, Z=.75: Utility Menu WorkPlane Offset WP by Increments 设置 X,Y,Z Offsets = 2.25, 1.25, 0.75设置XY, YZ, ZX Angles = 0, -90, 0, 然后按 OK或用命令:WPOFF, 2.25, 1.25, 0.75WPROT, 0, -90, 0 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual5.创建直径为0.75 英寸深度为-1.5 英寸的圆柱 : Main Menu Preprocessor Modeling Create Volumes Cylinder Solid Cylinder输入Radius = 0.75/2输入Depth = -1.5, 然后按 OK或用命令: CYL4, , ,0.75/2, , , ,-1.56.将圆柱考贝到DZ=1.5的新位置 : Main Menu Preprocessor Modeling Copy Volumes +拾取柱体 (体号 2),按 OK DZ = 1.5, 按 OK或用命令: VGEN,2,2, , , , ,1.5, ,0 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual7.从轴承座基础中挖出两个圆孔: Main Menu Preprocessor Modeling Operate Booleans Subtract Volumes拾取轴承座基础的体 (体 1), 按 OK拾取两个圆柱体 (体 2 和体3), 然后按 OK或用命令:VSBV, 1, ALL INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual8.在整体坐标系中改变工作平面的相对位置: Utility Menu WorkPlane Align WP with Global Cartesian或用命令:WPCSYS,-1,0VPLOT9.创建套筒托架的基础: Main Menu Preprocessor Modeling Create Volumes Block By 2 Corners & Z WP X = 0 WP Y = 1 Width = 1.5 Height = 1.75 Depth = 0.75, then OK 或用命令:BLC4,0,1,1.5,1.75,0.7510.将工作平面移到套筒托架的正面: Utility Menu WorkPlane Offset WP to Keypoints +拾取正面左角顶部的关键点,按 OK或用命令:KWPAVE, 16 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual11.创建套筒托架的拱: Main Menu Preprocessor Modeling Create Volumes Cylinder Partial Cylinder输入WP X = 0输入WP Y = 0输入Rad-1 = 0输入Theta-1 = 0输入Rad-2 = 1.5输入Theta-2 = 90输入Depth = -0.75, 然后按 OK或用命令:CYL4,0,0,0,0,1.5,90,-0.75 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual12.通过套筒托架的孔创建圆柱: Main Menu Preprocessor Modeling Create Volumes Cylinder Solid Cylinder WP X = 0 WP Y = 0 Radius = 1 Depth = -0.1875,然后按 Apply WP X = 0 WP Y = 0 Radius = 0.85 Depth = -2, 然后按 OK或执行:CYL4,0,0,1, , , ,-0.1875CYL4,0,0,0.85, , , ,-2 Counterbore Through hole INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual13.挖掉两个圆柱，形成轴承座和套筒的孔: Main Menu Preprocessor Modeling Operate Booleans Subtract Volumes拾取两个形成套筒托架拱和基础的体按Apply拾取轴承座柱按Apply拾取同样的两个基础的体按Apply拾取通过孔的圆柱按OK14.合并相同的关键点: Main Menu Preprocessor Numbering Ctrls Merge Items设置标号 “Keypoints”,然后按 OK或用命令:NUMMRG,KP Arch and Base of Bushing Bracket INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual15.创建腹板:15a. 在基础正面顶边的中间建立一个关键点: Main Menu Preprocessor Modeling Create Keypoints KP between KPs在基础上拾取两个位于正上方拐角处的关键点，按 OK RATI = 0.5, 然后按OK或用命令:KBETW,7,8,0,RATI,0.5 1st Keypoint1st Keypoint2st Keypoint INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual15b.创建三角形面: Main Menu Preprocessor Modeling Create Areas Arbitrary Through KPs在轴承座基础和套筒托架基础相交的位置，拾取第一个关键点 X=1.5在拱表面底部和套筒托架基础相交的位置，拾取第二个关键点 X=1.5拾取在14a步骤中建立的位于X=1.5, Y=1, Z=3的第三个关键点按Ok或用命令:A,14,15,9 1st Keypoint3rd Keypoint2nd Keypoint INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual15c.沿面的法线方向拉伸面: Main Menu Preprocessor Modeling Operate Extrude Areas Along Normal拾取在步骤14b中建立的三角形面,按 OK输入DIST = -0.15, 然后按OK或用命令:VOFFST,3,-0.15 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual16.组合体: Main Menu Preprocessor Modeling Operate Booleans Glue Volumes拾取Pick All或用命令:VGLUE,ALL17.打开体号的显示开关，画体: Utility Menu PlotCtrls Numbering 设置 Volume numbers选项为 on, 按 OK或用命令:/PNUM,VOLU,1VPLOT18.保存数据库，退出 ANSYS: Pick the “SAVE_DB” button in the Toolbar Pick the “QUIT” button in the Toolbar选择 “Quit - No Save!”按OK 或用命令:FINISH/EXIT,ALL Training Manual实体建模: 由下而上 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual说明用由下而上建模技术，建立连杆几何模型。 6.52.5 0.5 1.8 0.3 1.0R 1.4R 0.4R0.7R45oSpline through six control points CLCLCrank pin end Wrist pin end All dimensions in inches 45o 0.280.4 0.33 4.754.03.25 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual1.按教师指定的工作目录，用“c-rod” 作为作业名，进入ANSYS。2.创建两个圆形面: Main Menu Preprocessor Modeling Create Areas Circle By Dimensions输入RAD1 = 1.4输入RAD2 = 1输入THETA1 = 0输入THETA2 = 180, 然后选择Apply输入THETA1 = 45, 然后选择OK或用命令:/PREP7PCIRC,1.4,1,0,180 PCIRC,1.4,1,45,1803.打开 面号: Utility Menu PlotCtrls Numbering .设置面号为 “on”, 然后选择OK或用命令:/PNUM,AREA,1APLOT INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual4.创建两个矩形面: Main Menu Preprocessor Modeling Create Areas Rectangle By Dimensions输入X1 = -0.3, X2 = 0.3, Y1 = 1.2, Y2 = 1.8, 然后选择Apply输入X1 = -1.8, X2 = -1.2, Y1 = 0, Y2 = 0.3, 然后选择OK或用命令:RECTNG,-0.3,0.3,1.2,1.8RECTNG,-1.8,-1.2,0,0.35.平移工作面位置(X=6.5): Utility Menu WorkPlane Offset WP to XYZ Locations +回车后在输入窗口输入 6.5 ， OK或用命令: Or issue:WPAVE,6.5 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual6.再创建两个圆形面: Main Menu Preprocessor Modeling Create Areas Circle By Dimensions输入RAD1 = 0.7输入RAD2 = 0.4输入THETA1 = 0输入THETA2 = 180, 然后选择Apply输入THETA2 = 135, 然后选择OK或用命令:PCIRC,0.7,0.4,0,180 PCIRC,0.7,0.4,0,135 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual7.在每一组面上分别进行布尔操作: Main Menu Preprocessor Modeling Operate Booleans Overlap Areas先选择左边的一组面, 然后选择Apply再选择右边的一组面, 然后选择OK或用命令:AOVLAP,1,2,3,4AOVLAP,5,6 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual8.定义四个新的关键点: Main Menu Preprocessor Modeling Create Keypoints In Active CS第一关键点, X=2.5, Y=0.5, 然后选择Apply第二关键点, X=3.25, Y=0.4, 然后选择Apply第三关键点, X=4, Y=0.33, 然后选择Apply第四关键点, X=4.75, Y=0.28, 然后选择OK或用命令:K, ,2.5,0.5K, ,3.25,0.4K, ,4.0,0.33K, ,4.75,0.289.激活整体柱坐标系: Utility Menu WorkPlane Change Active CS to Global Cylindrical或用命令:CSYS,1 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual10.创建一条线（由一系列关键点拟合一条样条曲线）: Main Menu Preprocessor Modeling Create Lines Splines With Options Spline thru KPs顺序拾取如图形窗口所示的六个关键点, 然后选择OK 1st kp 6th kp3rd kp 5th kp2nd kp 4th kp INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual10. (续): 输入XV1 = 1 (总体柱坐标系，关键点 1 处的半径) YV1 = 135 (总体柱坐标系，关键点 1 处的角度) XV6 = 1 (总体柱坐标系，关键点 6 处的半径) YV6 = 45 (总体柱坐标系，关键点 6 处的角度)按OK或用命令:BSPLIN,5,6,7,21,24,22,1,135,1,45 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual11.通过关键点1和18创建一条直线 : Main Menu Preprocessor Modeling Create Lines Lines Straight Line拾取图形窗口所示的两个关键点, 然后选择OK或用命令:LSTR, 1, 18 1st kp 2nd kp INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual12.打开线号，显示线: Utility Menu PlotCtrls Numbering .设置 Line numbers为 “on”, 然后选择OK Utility Menu Plot Lines或用命令:/PNUM,LINE,1LPLOT13.以6号、1号、7号、25号线为边界创建一个新面: Main Menu Preprocessor Modeling Create Areas Arbitrary By Lines拾取四条线 (6, 1, 7, 和 25), 然后选择OK或用命令:AL, 6, 1, 7, 25 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual14.放大连杆左边部分: Use the Zoom Model Icon in the Model Control Toolbar INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual15.创建线与线的倒角: Main Menu Preprocessor Modeling Create Lines Line Fillet拾取线 36 和 40, 然后选择Apply输入RAD = .25, 然后选择Apply拾取线 40和 31, 然后选择Apply按Apply拾取线 30和 39, 然后选择OK按OK Utility Menu Plot Lines或用命令:LFILLT,36,40,0.25LFILLT,40,31,0.25LFILLT,30,39,0.25LPLOT INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual16.以倒角线为边界，创建新面: Main Menu Preprocessor Modeling Create Areas Arbitrary By Lines拾取线 12, 10, 和 13, 然后选择Apply拾取线 17, 15, 和19, 然后选择Apply拾取线 23, 21, 和24, 然后选择OK Utility Menu Plot Areas或用命令:AL, 12, 10, 13AL, 17, 15, 19AL, 23, 21, 24APLOT INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual17.把所有的面加起来: Main Menu Preprocessor Modeling Operate Booleans Add Areas拾取Pick All或用命令:AADD,ALL18.选择Fit 使整个模型充满图形窗口: Utility Menu PlotCtrls Pan, Zoom, Rotate 按Fit19.关闭线号和面号: Utility Menu PlotCtrls Numbering .设置线号和面号为“ off ”, 然后选择OK Utility Menu Plot Areas或用命令:/PNUM,LINE,0/PNUM,AREA,0APLOT INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual20.激活整体直角坐标系: Utility Menu WorkPlane Change Active CS to Global Cartesian或用命令:CSYS,021.以X-Z 平面 (在 Y 方向) 为对称面，对面作镜面反射: Main Menu Preprocessor Modeling Reflect Areas Pick All Select X-Z plane, then OK或用命令:ARSYM,Y,13 INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual22.把所有的面加起来: Main Menu Preprocessor Modeling Operate Booleans Add Areas Pick All或用命令:AADD,ALL23.关闭工作平面: Utility Menu WorkPlane Display Working Plane或用命令:WPSTYLE Use Fit View Icon INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0INTRODUCTION TO ANSYS 11.0Training Manual24.存储数据库，退出 ANSYS:在工具条中拾取 “SAVE_DB”在工具条中拾取 “QUIT”选择 “Quit - No Save!”按OK或用命令:SAVEFINISH/EXIT,NOSAVE